Question
The mean television viewing time for Americans is 15 hours per week ( Money , November 2003). Suppose a sample of 60 Americans is taken
The mean television viewing time for Americans is 15 hours per week (Money, November 2003). Suppose a sample of 60 Americans is taken to further investigate viewing habits. Assume the population standard deviation for weekly viewing time is = 4 hours.
When calculating values for z, round to two decimal places.
What is the probability that the sample mean will be within 1 hour of the population mean (to 4 decimals)?
What is the probability that the sample mean will be within 45 minutes of the population mean (to 4 decimals)?
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College Algebra Graphs and Models
Authors: Marvin L. Bittinger, Judith A. Beecher, David J. Ellenbogen, Judith A. Penna
5th edition
321845404, 978-0321791009, 321791002, 978-0321783950, 321783956, 978-0321845405
